QSC CX302V 2 Ch. Professional Amplifier for 70V Systems

The CX 2-Channel Series is designed to meet the specialized needs of sound contractors. Eight models have been designed from the ground up, combining QSC’s exclusive PowerLight® technology with specific features to meet the requirements of fixed installations. With high output power, versatile loading options, high thermal capacity and proven reliability, the CX Series is the ideal solution to any permanently installed sound system.

The model line incorporates QSC’s exclusive PowerLight technology. Three models, the CX302V, CX602V and CX1202V, provide direct 70 volt capability ranging from 250 watts to 1000 watts per channel for distributed audio systems. The CX302, CX502, CX702, CX902 and CX1102 offer low impedance capability and range in power from 325 watts to 1100 watts per channel at 4 ohms (20 Hz -20 kHz, 0.05% THD). The versatile CX902 and CX1102 have the ability to drive both 70 volt and low impedance loads for maximum flexibility. The CX amplifiers are equipped with many contractor specific features including 1 dB detented gain controls for easily repeatable settings and a custom security cover for tamper-proof installations. Active inrush limiting eliminates AC inrush current, cutting the need for power sequencers. CX amplifiers also include an HD15 Data Port connector to interface with Q-Sys and QSControl networked audio systems, for remote amplifier monitoring and control.

Key Features

8 models to meet your exact power requirements
Three 70 volt direct models
Five low impedance models, the CX902 and CX1102 also directly drive 70 volt loads
Exclusive PowerLight switch-mode power supply technology for high performance and compact size
Custom integrated security cover for tamper proof installations
Variable speed fan for low noise
1 dB detented gain controls for fast and accurate gain settings
Active inrush limiting eliminates AC inrush current, removing the need for expensive power sequencers
XLR and detachable Euro style input connectors
HD15 DataPort connector for Q-Sys and QSControl computer control and monitoring
Dip switch control for clip limiters, high pass filters, bridge mono and parallel operation
Selectable high pass filters protect speakers and prevent speaker transformer saturation withminimal effect on program material (33 Hz or 75 Hz on non-V models, 50 Hz or 75 Hz on V models)
Comprehensive front panel indicators including signal, clip, protect and QSC’s exclusive bridge mono and parallel input LEDs
Barrier strip output connector
Comprehensive protection circuitry including DC, infrasonic, thermal overload and short circuit protection
Class H complementary bipolar output circuitry for high efficiency (CX702, CX902, CX1102 & CX1202V)
Optional external transformer accessory pack for isolated 70 and 100 -volt outputs (converts CX302 to 400 watts per channel isolated output)
Compact size - all models are only 2 rack units high and 14″ deep for reduced rack cost and floor space
Light weight - all models weigh only 21 pounds (9.5 kg) for easier racking and shipping
3-year warranty plus optional 3-year extended service contract
All CX Series amplifiers meet the European Union’s, 2006 RoHS directive to restrict the use of hazardous materials used in electronic devices.

Technical Specifications

STEREO MODE, Both Channels Driven
8 ohms, 20 Hz-20 kHz, 0.05% THD: -
4 ohms, 20 Hz-20 kHz, 0.05% THD: -
2 ohms, 1 kHz, 1% THD: -
70V, 20 Hz-20 kHz, 0.05% THD: 200 W
70V, 1 kHz, 0.05% THD: 250 W
70V, 1 kHz, 1% THD: 300 W
BRIDGED MONO MODE
16 ohms, 20 Hz-20 kHz, 0.1% THD: -
8 ohms, 20 Hz-20 kHz, 0.1% THD: -
4 ohms, 1 kHz, 1% THD: -
140V, 20 Hz-20 kHz, 0.05% THD: 400 W
140V, 1 kHz, 0.05% THD: 500 W
140V, 1 kHz, 1% THD: 600 W
Noise, 20 Hz-20 kHz
>-106 dB
Input Sensitivity @ 8 ohms
1.26 Vrms
Voltage Gain @ 8 ohms
35 dB
Output Circuitry
AB+B
Distortion (SMPTE-IM)
Less than 0.02%
Distortion (Typical) 20 Hz-20 kHz: 10 dB below rated power 1.0 kHz and below: full rated power
Less than 0.01% THD Less than 0.01% THD
Frequency Response
20 Hz-20 kHz, +/- 0.2 dB
Damping Factor
Greater than 500
Input Impedance
6k ohms unbalanced, 12k ohms balanced
Input Clipping
10 Vrms (+22 dB)
Cooling
Variable-speed fan, rear-to-front air flow
Connectors, each channel
Input: 3-pin XLR & 3-pin detachable terminal blocks (1 each per channel) Output: Safety-shrouded barrier strip
Amplifier Protection
Full short circuit, open circuit, thermal, ultrasonic, and RF protection. Stable into reactive or mismatched loads.
Load Protection
On/Off muting, DC-fault power supply shutdown
Dimensions
19” (48.3 cm) wide, 3.5” (8.9 cm) tall (2 RU), 14” (35.6 cm) deep (from front mounting rails)